335-AA10-G5P datasheet(4/44 Pages) MAGNETROL

4 / 44 page

51-637 Echotel Model 335 Ultrasonic Transmitter

1.0

Installation

Caution: If equipment is used in a manner not specified by manufac-

turer, protection provided by equipment may be impaired.

1.1

Unpacking

Unpack the instrument carefully. Inspect all units for

damage. Report any concealed damage to carrier within

24 hours. Check the contents of the packing slip and

purchase order. Check and record the serial number for

future reference when ordering parts.

Caution: Do not discard the shipping container until all parts are

checked.

1.2

Mounting and Application Considerations

Caution: Unit should only be hand-tightened (4–12 ft-lbs) into the

process connection. The wrench flats should only be used

when removing the unit. Overtightening will cause trans-

ducer errors and will void the warranty.

There are several application considerations that should be

evaluated prior to installing a non-contact ultrasonic trans-

mitter. The next few pages should be read thoroughly to

ensure that the Model 335 will perform as expected in

the given application. Section 2.4, Measurement Range

Calculations, provides measurement range calculations that

should be used to determine the maximum potential range

in difficult applications.

1.2.1 Position

The optimum mounting position of the Model 335 is

between 1⁄2 of the radius and 2⁄3 diameter of the (cylindrical)

tank. This will position the unit to minimize any interfer-

ence that the 7° beam (3.5° half angle) has with the tank

walls or any agitator blades that exist in the tank. Refer to

beam angle figure on page 38.

1.2.2 Orientation

The face of the transducer must be parallel to the liquid

surface within ±2° to 3°.

1.2.3 Temperature

Ensure that the transmitter will be protected against

overheating by direct sunshine. When the unit will be

subjected to severe direct sun, the use of a sunshade is

recommended.

Sunshade

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